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Symptom
Screen appears to be rolling up
or down, to the left or right
or
Screen has no pictures and
adjusting the brightness has no
effect
1.
Set the I/O switch to
a
(Off).
2.
Make sure the video cable is firmly
connected to the logic element.
3.
Set the I/O switch to I (On).
Action
4.
Turn the security key and the Brightness Control
knob fully clockwise.
5.
Make sure the power-on light is on.
6.
Set the Test/Normal switch to Test.
7.
Does the symptom disappear?
YES: Return to normal operation.
NO: Go to step 8.
8.
Is the Status light continuously blinking?
YES: Replace the video element. Go to page 61.
NO: Replace the logic element. Go to page 69.
32
Video Cable
Power-On Light
Status Light
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